VisualizationFORTBLOCK corner block 730, 730 × 360 × 200 mm, 3D Printed Concrete
FORTBLOCK corner wall block, 730 × 360 × 200 mm, 3D printed concrete, for the outside and inside corners of a building. Sold by the piece.
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A house built from FORTBLOCK blocks →
| Size | 730 × 360 × 200 mm |
| Volume | about 0.0526 m³ |
| Weight | 31.62 kg |
| Facade area | 0.146 m² |
| Use | outside and inside corners |
| Concrete | M250, density 2270 kg/m³ |
| Frost resistance | F150–F200 |
| Water resistance | W6 |
| Manufacturing | 14–45 days |
| Warranty | 20 years |
The FORTBLOCK corner block 730 forms the outside and inside corners of a building. Its overall size is the same as the standard block 730: 730 × 360 × 200 mm. FORTBLOCK is a large-format, factory-made 3D printed concrete block for energy-efficient residential, commercial and industrial buildings.
What the wall is made of
- the block's load-bearing concrete shell
- composite reinforcement
- an inner insulation layer of expanded polystyrene or foam concrete
The foam concrete is poured on site and the wall becomes monolithic. The number of corner blocks depends on the design: a manager counts them together with the standard blocks.
Manufacturing takes 14–45 days depending on the volume, with delivery across Ukraine. Installation is done by our partners.
The first picture is a 3D visualization of the block; the drawing with its overall dimensions is in the «Drawings and schemes» section below. More photos and video are on the «A house built from FORTBLOCK blocks» page.
Drawings and schemes
Frequently asked questions
What concrete do you print with?
Heavyweight concrete made with clean cubical crushed stone up to 10 mm, with no dusty screenings. The sand is quarry sand; clay and metal particles are removed by a powerful magnet above the conveyor. For thin-walled products we use only fresh M500 cement, which does not cause efflorescence, plus a plasticiser. Because the layers are compacted by extrusion rather than vibration, the mix contains more cement than ordinary concrete.
Why is every element 20 cm high?
Our production is standardised around this height. Almost any structure can be broken down into blocks in multiples of 20 cm with monolithic joints. This height gives precise layer geometry without the "elephant foot" effect and a manageable block weight: 40 kg on average, about 60 kg at most, so two people can lift it.
Will 3D printed concrete crack?
Every structure includes monolithic joints that carry the dead load, wind and snow, as well as expansion joints, composite reinforcement and coarse aggregate that acts as micro-reinforcement. As a result, the products withstand transport over 1,500+ km and all service loads. The design service life is over 100 years.
How are the products reinforced?
Each printed contour is reinforced twice along its height with certified composite rebar from a trusted manufacturer (Arvit). It does not lose its properties over time.
How do you ensure the layers bond into a solid whole?
Layer-to-layer adhesion is the key to 3D printing. We control the layer deposition time, concrete workability, air humidity and temperature, and the products are cured in a steam chamber.
What equipment do you print on?
On industrial CRAFTRUDER construction 3D printing equipment.
Does a fence need a strip foundation?
No. Most fences are installed on point pier foundations with vertical rebar starters (usually 2 bars of 12 mm diameter). The entire load of a section is transferred to the monolithic joints, so a strip foundation is unnecessary, and a pier foundation cuts the amount of reinforcement and concrete work by about 5 times. Houses, of course, need a strip foundation or an insulated slab foundation.
I already have a strip foundation with posts. Will it work?
Send us the measurements and post spacing, and we will design a matching structure. If they don't match, the old posts or rebar are cut off and new anchors are set with chemical anchoring, or rebar is driven into the existing foundation.
Tell us about your project
Send a sketch, drawing or photo of your site. We'll pick the product, work out the price, agree on quantity and delivery, and our partners will handle installation.
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